Author
Víctor J. Rubio
Other affiliations: Complutense University of Madrid, Hospital Clínico San Carlos, Spanish National Research Council ...read more
Bio: Víctor J. Rubio is an academic researcher from Autonomous University of Madrid. The author has contributed to research in topics: Athletes & Rhizoctonia solani. The author has an hindex of 23, co-authored 97 publications receiving 1816 citations. Previous affiliations of Víctor J. Rubio include Complutense University of Madrid & Hospital Clínico San Carlos.
Papers published on a yearly basis
Papers
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TL;DR: A primer able to amplify the internal transcribed spacers of the ribosomal DNA (rDNA), having enhanced specificity for ascomycetes, was identified by reviewing fungal ribosomic DNA sequences deposited in GenBank.
270 citations
TL;DR: Phylogenetic analyses based on the ITS sequences suggest that the analyzed AG4 strains can be divided into three groups that correlate with habitat and virulence.
Abstract: The relatedness of nine isolates ofRhizoctonia solani, belonging to anastomosis group (AG) 4, and one isolate of AG1 was determined by comparative sequence analysis based on direct sequencing of PCR-amplified ribosomal DNA [the internal transcribed spacer (ITS) region and the 5.8 s ribosomal DNA]. The 5.8s rDNA is completely conserved, but both ITS regions show variation among strains. AG1 was an outgroup based on anastomosis ability and RFLP analyses. Phylogenetic analyses based on the ITS sequences suggest that the analyzed AG4 strains can be divided into three groups that correlate with habitat and virulence.
113 citations
TL;DR: Hypoxylon, with at least 130 currently accepted species and varieties, is one of the largest genera of the Xylariaceae as discussed by the authors, and taxonomic aspects that define and delimit the genus have varied among the authors.
Abstract: Hypoxylon, with at least 130 currently accepted species and varieties, is one of the largest genera of the Xylariaceae. Taxonomic aspects that define and delimit the genus have varied among...
75 citations
TL;DR: The need to revise many of the concepts usually applied to the classification of members of the Diatrypaceae family is suggested, suggesting that the multisporate asci character has appeared several times during the evolution of the group.
Abstract: The order Diatrypales (Ascomycota) contains one single family, the Diatrypaceae. To obtain insight in the phylogenetic relationships within this family, the complete sequences of the ITS region (ITS1, 5.8S rRNA gene and ITS2) of 53 isolates from the five main genera in the family (Diatrype, Diatrypella, Cryptosphaeria, Eutypa and Eutypella) were determined and aligned for phylogenetic reconstruction. Sequence analysis revealed the presence of tandem repeated motifs 11 nucleotides-long, placed in homologous positions along the ITS1 region. Parsimony analysis established the existence of nine monophyletic groups and one branch with a single isolate of Eutypella quaternata. The phylogenetic relationships established by parsimony analysis did not correlate well with classical taxonomic schemes. None of the five genera included in this study was found to be monophyletic. The genera Diatrype, Eutypa and Cryptosphaeria each were divided into two groups. Isolates of Diatrype flavovirens appeared in a clade separated from the one that grouped Diatrype disciformis and the rest of Diatrype species. The Eutypa strains appeared distributed into two clades, one grouping Eutypa lata and related species (Eutypa armeniacae, Eutypa laevata, Eutypa petrakii), and another with the remaining species of the genus. Eutypella (excluding Eutypella quaternaria) appeared as an unstable monophyletic group, which was lost when the sequence alignment was subjected to neighbor-joining analysis. The genus Diatrypella was not associated with any monophyletic group, suggesting that the multisporate asci character has appeared several times during the evolution of the group. Overall, our study suggests the need to revise many of the concepts usually applied to the classification of members of the family.
71 citations
TL;DR: Primers for identification of the economically important plant pathogenic Rhizoctonia solani, for AG 2 and for each subgroup and an ecological type of AG 2, are designed.
71 citations
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TL;DR: It is proposed that the P-FIT provides a parsimonious account for many of the empirical observations, to date, which relate individual differences in intelligence test scores to variations in brain structure and function.
Abstract: Is there a biology of intelligence which is characteristic of the normal human nervous system?" Here we review 37 modern neuroimaging studies in an attempt to address this question posed by Halstead (1947) as he and other icons of the last century endeavored to understand how brain and behavior are linked through the expression of intelligence and reason. Reviewing studies from functional (i.e., functional magnetic resonance imaging, positron emission tomography) and structural (i.e., magnetic resonance spectroscopy, diffusion tensor imaging, voxel-based morphometry) neuroimaging paradigms, we report a striking consensus suggesting that variations in a distributed network predict individual differences found on intelligence and reasoning tasks. We describe this network as the Parieto-Frontal Integration Theory (P-FIT). The P-FIT model includes, by Brodmann areas (BAs): the dorsolateral prefrontal cortex (BAs 6, 9, 10, 45, 46, 47), the inferior (BAs 39, 40) and superior (BA 7) parietal lobule, the anterior cingulate (BA 32), and regions within the temporal (BAs 21, 37) and occipital (BAs 18, 19) lobes. White matter regions (i.e., arcuate fasciculus) are also implicated. The P-FIT is examined in light of findings from human lesion studies, including missile wounds, frontal lobotomy/leukotomy, temporal lobectomy, and lesions resulting in damage to the language network (e.g., aphasia), as well as findings from imaging research identifying brain regions under significant genetic control. Overall, we conclude that modern neuroimaging techniques are beginning to articulate a biology of intelligence. We propose that the P-FIT provides a parsimonious account for many of the empirical observations, to date, which relate individual differences in intelligence test scores to variations in brain structure and function. Moreover, the model provides a framework for testing new hypotheses in future experimental designs.
1,285 citations
01 Jan 1977
TL;DR: In this article, a study of 589 female and 644 male, predominantly white, 9th-12th grade students enrolled in mathematics courses from four schools, controlling for mathematics background and general ability (Quick Word Test); relationships to mathematics achievement and to sex-related differences in mathematics achievement, of spatial visualization (Differential Aptitude Test), eight attitudes measured by the Fennema-Sherman Mathematics Attitudes Scales, a measure of Mathematics Activities outside of school, and number of mathematics related courses and Space Related Courses taken.
Abstract: This study investigated (a) mathematics achievement (Test of Academic Progress) of 589 female and 644 male, predominantly white, 9th-12th grade students enrolled in mathematics courses from four schools, controlling for mathematics background and general ability (Quick Word Test); (b) relationships to mathematics achievement, and to sex-related differences in mathematics achievement, of spatial visualization (Differential Aptitude Test), eight attitudes measured by the Fennema-Sherman Mathematics Attitudes Scales, a measure of Mathematics Activities outside of school, and number of Mathematics Related Courses and Space Related Courses taken. Complex results were obtained. Few sex-related cognitive differences but many attitudinal differences were found. Analyses of variance, covariance, correlation, and principal components analysis techniques were used. The results showed important relationships between socio-cultural factors and sex-related cognitive differences.
963 citations
01 Jan 2008
TL;DR: In this article, the authors meta-analyzed the social desirability literature, examining whether social desire functions as a predictor for a variety of criteria, as a suppressor, or as a mediator.
Abstract: Response bias continues to be the most frequently cited criticism of personality testing for personnel selection. The authors meta-analyzed the social desirability literature, examining whether social desirability functions as a predictor for a variety of criteria, as a suppressor, or as a mediator. Social desirability scales were found not to predict school success, task performance, counterproductive behaviors, and job performance. Correlations with the Big Five personality dimensions, cognitive ability, and years of education are presented along with empirical evidence that (a) social desirability is not as pervasive a problem as has been anticipated by industrial-organizational psychologists, (b) social desirability is in fact related to real individual differences in emotional stability and conscientiousness, and (c) social desirability does not function as a predictor, as a practically useful suppressor, or as a mediator variable for the criterion of job performance. Removing the effects of social desirability from the Big Five dimensions of personality leaves the criterion-related validity of personality constructs for predicting job performance intact.
836 citations
TL;DR: In this article, the major glycolipid in myelin was used as a cell surface marker for cultured rat oligodendrocytes, the glial cells responsible for making myelin in the central nervous system.
Abstract: THE increasing use of tissue culture techniques in neurobiological studies has created an urgent need for cell-type specific markers which would allow unambiguous identification of the different types of neural cells. We show here that galactocerebroside (GC), the major glycolipid in myelin1, can serve as such a cell-surface marker for cultured rat oligodendrocytes, the glial cells responsible for making myelin in the central nervous system.
785 citations